Low tritium partial pressure permeation system for mass transport measurement in lead lithium eutectic

R. J. Pawelko, M. Shimada, K. Katayama, S. Fukada, P. W. Humrickhouse, T. Terai

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper describes a new experimental system designed to investigate tritium mass transfer properties in materials important to fusion technology. Experimental activities were carried out at the Safety and Tritium Applied Research (STAR) facility located at the Idaho National Laboratory (INL). The tritium permeation measurement system was developed as part of the Japan/US TITAN collaboration to investigate tritium mass transfer properties in liquid lead lithium eutectic (LLE) alloy. The experimental system is configured to measure tritium mass transfer properties at low tritium partial pressures. Initial tritium permeation scoping tests were conducted on a 1 mm thick α-Fe plate to determine operating parameters and to validate the experimental technique. A second series of permeation tests was then conducted with the α-Fe plate covered with an approximately 8.5 mm layer of liquid lead lithium eutectic alloy (α-Fe/LLE). We present preliminary tritium permeation data for α-Fe and α-Fe/LLE at temperatures between 400 and 600 °C and at tritium partial pressures between 1.7E - 03 and 2.5 Pa in helium. Preliminary results for the α-Fe plate and α-Fe/LLE indicate that the data spans a transition region between the diffusion-limited regime and the surface-limited regime. Additional data is required to determine the existence and range of a surface-limited regime.

Original languageEnglish
Pages (from-to)8-13
Number of pages6
JournalFusion Engineering and Design
Volume102
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

Tritium
Lithium
Permeation
Partial pressure
Eutectics
Mass transfer
Lead
Helium
Liquids
Fusion reactions

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Low tritium partial pressure permeation system for mass transport measurement in lead lithium eutectic. / Pawelko, R. J.; Shimada, M.; Katayama, K.; Fukada, S.; Humrickhouse, P. W.; Terai, T.

In: Fusion Engineering and Design, Vol. 102, 01.01.2016, p. 8-13.

Research output: Contribution to journalArticle

Pawelko, R. J. ; Shimada, M. ; Katayama, K. ; Fukada, S. ; Humrickhouse, P. W. ; Terai, T. / Low tritium partial pressure permeation system for mass transport measurement in lead lithium eutectic. In: Fusion Engineering and Design. 2016 ; Vol. 102. pp. 8-13.
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